Quarterly report pursuant to Section 13 or 15(d)

Legal Proceedings (Details)

v3.20.2
Legal Proceedings (Details)
12 Months Ended
Dec. 31, 2018
plantiff
Pending litigation | Private Attorney General Act Lawsuit Against Dollar Tree Stores, Inc. and Dollar Tree Distribution, Inc. | Dollar Tree  
Loss Contingencies [Line Items]  
Loss contingency, number of plaintiffs 2